Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Cephalopoda Cuvier, 1795 - cephalopods
     Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888
       Order Sepiida Gray, 1849
         Suborder Sepiina Gray, 1849
           Superfamily Sepioidea
             Family Sepiolidae Leach, 1817
               Subfamily Heteroteuthinae Appellöf, 1898
                 1 Genus Heteroteuthis Gray, 1849
                 2 Genus Iridoteuthis Naef, 1912
                 3 Genus Nectoteuthis Verrill, 1883
                 4 Genus Sepiolina Naef, 1912
                 5 Genus Stoloteuthis Verrill, 1881